All models › Qwen
Qwen3.5-4B
Qwen · open license · on Arena since 27 Feb 2026
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Arena score—Not voted on Arena yet
Size4.7 Bparameters
4-bit download2.8 GBweights only, Q4_K_M
Max context256Ktokens, from the model config
Where to use it for free
- Download and run it at home: official weights · GGUF files for Ollama and LM Studio
No Arena votes yet
Arena has not voted on this model. It is listed because it is a popular small model on its lab's official Hugging Face page (7.9M downloads a month).
Speed on popular hardware
| Hardware | GPU memory | Fits? | Speed |
|---|---|---|---|
| RTX 3060 12 GB | 12 GB | Fits in GPU | 64 tok/s |
| RTX 4060 Ti 16 GB | 16 GB | Fits in GPU | 51 tok/s |
| RTX 3090 | 24 GB | Fits in GPU | 167 tok/s |
| RTX 4090 | 24 GB | Fits in GPU | 180 tok/s |
| RTX 5090 | 32 GB | Fits in GPU | 320 tok/s |
| RX 7900 XTX | 24 GB | Fits in GPU | 171 tok/s |
| 2 × RTX 3090 | 48 GB | Fits in GPU | 162 tok/s |
| 4 × RTX 3090 | 96 GB | Fits in GPU | 153 tok/s |
| Mac M4 Max 128 GB | 96 GB | Fits in GPU | 97 tok/s |
| Ryzen AI Max+ 395 128 GB | 96 GB | Fits in GPU | 46 tok/s |
| 8 × H100 SXM | 640 GB | Fits in GPU | 494 tok/s |
Estimate at 4-bit with 32K context, 64 GB of DDR5 for offload. Speed ≈ memory bandwidth × 70% ÷ data read per token; real numbers vary by about ±30%.
GPU memory needed
| Level | 8K context | 32K context | 128K context | Quality vs full |
|---|---|---|---|---|
| Q3_K_M | 3.2 GB | 4.0 GB | 7.2 GB | +10.5% noticeable loss |
| Q4_K_M | 3.7 GB | 4.5 GB | 7.7 GB | +2.8% small loss |
| Q5_K_M | 4.2 GB | 5.0 GB | 8.2 GB | +0.9% very small loss |
| Q6_K | 4.7 GB | 5.5 GB | 8.7 GB | +0.3% near-lossless |
| Q8_0 | 5.9 GB | 6.7 GB | 9.9 GB | ≈ 0% same as full |
| F16 | 10 GB | 11 GB | 14 GB | ≈ 0% same as full |
Weights + context cache (from the model's architecture) + runtime. Quality: increase in perplexity against the full model, from llama.cpp tests, scaled by model size. Simulate your own setup.